Non-conducting covering for pipe fittings or joints.



No. 70|,9`99. Patented lune I0, |902.

' J. W. FARLEY. i NON-CONDUCT|NG CVEBING FOR PIPE FITTNGS 0H JOINTS.

(Application led Jan. 18, 1902.)

(llo Model.)

a G E Jo H N W FARM-Yi ATTEST l THE Nomina PETERS co. Puoourrm.,wASHxNGToN, n. r:4

PATENT OFFICE. y

.IOHN W. FARLEY, OF CLEVELAND, OHIO.

NON-CONDUCTING COVEFIING FOR PIPE FITTINGS OR JOINTS.-

SPEQIFIQATION forming part of Letters ratentNo. 701,999, dated June 1o,1902.

` v Application filed January V18.21902. lSerial No. 90,2778. (Nomodel.)

ToaZZ whom, itHQ/May'OOWLcePrI/:i

vBe it knownthatI L-JoHN W. .FARLEL a citizen of the UnitedStates,residing at Cleveland, in the county of Cuyahoga and State ofOhio, have invented certain new and usefuly ImprovementsinNon-.Conducting Coveringsl the invention consists inthe construction,

combination, and arrangement of parts substantially as shown anddescribed, andparticularly pointed out inthe claims.

In the accompanying drawings, Figure lis a side view of the ends of twopipe-sections anda sectional elevation of the anges unit-v ing the sameand constituting a pipe-joint and a sectional elevation of the coveringsover both said pipes and the joint. Fig. 2 is a perspective View of thepipe-sections seen in Fig. 1 andthe flanges thereon and ofaportion ofthe yplaincovering as shown in Fig. 1. Fig- 3 is a perspective view ofone of the sections of the joint-'covering shown in Fig. 1.

The use of pipe-jointswith flanges onthe.

ends of the pipes for connecting them is now' very common, and itfrequently occurs that such'joints have to be separated or opened forone reason or another, so that these joints are commonly united by meansof screwbolts. In all such cases the bolts uniting the lianges have tobe removed lengthwise preliminary to the separation of the pipes. Itlikewise occurs very often that fires are kindled by or through iian gessimilar to these, and especially when exposed with highlyinlia'mmablematerial about them. It is therefore designed by the present inventionto provide a construction of covering which will make the v jointflreproof and yet leave the connecting-bolts free to be removed withoutdisturbing .the non conducting covering which is upon the pipesthemselves and by merely removing the non-conducting covering from theiianges. y

To these several ends the invention herein shown comprises, say, twopipesA and B and l two, flanges Afgand B thereon, preferably.lthreadedor screwed upon said pipesand adjusted to come flush together,and tie-bolts "a, binding thesaid'iianges' together. Suitable asbestosor other wrapping or covering C is shown'on" the pipe ends A, and thiscovering is generally of va permanent character, so that it` cannot beremoved without mutilation, unfitting'it to be replaced. Generally alsowhenI the emergency arises and removal is necessary itis found thatthere is no other wrapping present to replace it, and this condition isalways inconvenient and liable to be more or less serious inconsequence. Hence Ihave conceived the idea of making a joint D insections as a kwholly separate part and form the same with necks d andel', `adapted to overlap the pipe-covering C on both pipes A and B andwith a special venlargement d2' about itsmiddle to encompass the iiangesA' and B. These joint-coveringI sections D are preferably uniform insize, andin this instance the neck d islengthened as compared with neckd', so as tooverlap cover'C beyond vthe vacant bolt, removing chamber 2,which is deep enough to remove the bolts lengthwise. As thebolts aordinarily are made, they come .relatively as near to the pipes Afand Bas is shown in Fig. 1, and the cover O is 'proportionally as thick asherein shown. Hence if the said cover O were brought u'p as near to theboltA on the Vright as it is on the left in Fig. 1

the bolts could not be removed without breakl ing away the said cover C.I have therefore provided a construction which avoids the necessity ofmutilating cover C to remove the bolts for separating the joint, andthis I have accomplished by shortening the said cover upon that sideofthe iiang'es sufficiently to make' chamber 2, within which to withdrawthe bolts, and have lengthened the neck d of the flange-cover Dsuiciently to overlap the cover 1C, substantially as shown. This enablesme to have free access to the pipe joints and bolts by simply releasingand laying aside the flange-cover sections, which are secured in placeby removable bands or rings E, one or more being used upon each neck dand d'. The said bands firmlybind the covering members D in positionover the flanged joint and the extremities of pipes C. It will also beobserved that the chamber 3 within' So j too

the covering D, Which incloses iianges A and B', is narrowed laterally,so as to eectually cover the said flanges and bolts, and in this way thesize of the covering is kept down Within reasonable proportions and isnot objectionable on account of the large space it- Will occupy.

Another feature of the covering or covering section or member D is itsinternal construction, which is not only cellular, but is constructedwith alternate layers of paper and linings, and the said linings arefiuted or corrugated lengthwise from end to end of the section, so as toform heat conducting and relieving channels, thus very materiallycontributing to the cooling of the joint-covering.

What I claim is- 1. A detachable covering for the joints and flanges ofsections of covered pipes, comprising a casing with an enlarged centralchamber having necks projecting from the ends thereof adapted to beinserted over the ends of the covered pipesections, and passages openfrom end to end of said casing by which a free circulation of air isestablished through the same, substantially as described.

2. A detachable covering for the joints and flanges of sections of pipescomprising a covering attached to the pipes, the covering on one pipeabutting against the flange thereof, While a space is left between thecovering and iiange of the other pipe for the purpose of allowing thewithdrawing of the bolts from the [ianges ofthe pipe-joints, aninclosing casing having air channels or passages open from end to end,and provided with end. portions adapted to fit over the ends of saidpipe-coverings, and an enlarged approximately central chamber,substantially as described.

Witness my hand to the foregoing specii- 4o cation this Sth day ofJanuary, 1902.

JOHN W. FARLEY.

Witnesses:

R. B. MOSER, T. M. MADDEN.

